This unsurpassed technology is what we call VOLTAiR within our Professional Fidelity series. It lets you enjoy music on the same level as the mastering engineer.

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SPL Audio Phonitor x

The Phonitor x is the ultimate headphone amplifier. Thanks to VOLTAiR technology it powers headphones operated both balanced and unbalanced playfully with up to 3.7 W.

The revolutionary Phonitor Matrix delivers the most realistic playback on headphones. As almost all music was mixed for speaker playback the Phonitor Matrix lets you experience music on headphones as being played back through speakers.

The Phonitor x is not just a headphone amplifier, but also an excellent preamplifier that can also drive power amplifiers or active monitors.

Specifications

XLR Input

  • Neutrik XLR, balanced, Pin 2 = (+)
  • Impedance: ca. 20 kohms
  • CMR: -82 dBu (at 1 kHz)
  • Max. Input Level: +32.5 dBu

RCA Input

  • RCA, unbalanced (single-ended)
  • Impedance: ca. 10 kohms
  • Max. Input Level: +32.5 dBu

Digital Inputs (optional)

  • Coaxial SPDIF (RCA)
  • Optisch TOSLINK (F06)
  • USB (B)
  • Sample Rates PCM (kHz): 44.1, 48 , 88.2, 96, 176.4, 192, 352.8, 384, 705.6, 768
  • 32 Bit
  • Sample Rates DSD (MHz): 2.8 (DSD64), 5.6 (DSD128), 11.2 (DSD256)

Balanced Headphone Output

  • Neutrik 4-pin XLR connector
  • Pin wiring: 1= L (+), 2= L (-), 3= R (+), 4= R (-)
  • Impedance: 0.36 ohms
  • Damping Factor: 180 @ 40 ohms
  • Frequency Range: 10 Hz to 300 kHz ( -3 dB)
  • Crosstalk at 1kHz: -90 dB
  • THD & N: 0.00091 % (at 0 dBu, 1kHz, 100 kohms load)
  • Noise (A-weighted): -98 dBu
  • Dynamic Range: 130.5 dB

Unbalanced Headphone Output

  • 6.35 mm TRS connector
  • Pin wiring: Tip = Left, Ring = Right, Sleeve = GND
  • Impedance: 0.18 ohm
  • Attenuation Factor: 180 @ 40 ohms
  • Frequency Range: 10 Hz to 300 kHz ( -3 dB)
  • Crosstalk at 1kHz: -90 dB
  • THD & N: 0.00091% (at 0 dBu, 1 kHz, 100 kohms load)
  • Noise (A-weighted): -103 dB
  • Dynamic Range: 135.5 dB

Max. Output Power (at +30 dBu @ 1 kHz)

  • 2 x 1 W at 600 Ohm impedance
  • 2 x 2 W at 300 Ohm impedance
  • 2x 3.7 W at 120 Ohm impedance
  • 2x 2.9 W at 47 Ohm impedance
  • 2x 2.7 W at 32 Ohm impedance

Speaker/Line Outputs

  • Neutrik XLR, balanced, Pin 2 = (+)
  • RCA, unbalanced (single-ended)
  • Frequency Range: 4 Hz to 300 kHz (-3 dB)
  • Crosstalk at 1 kHz: -106 dB
  • THD & N: 0.00085 % (at 0 dBu, 1 kHz, 100 kohms load)
  • Noise (A-weighted): -103.8 dB
  • Dynamic Range: 136.3 dB

Internal Operating Voltages

  • Analog: +/- 60 V
  • Digital: + 5 V and + 3,3 V (optional)

Power Supply

  • Mains voltage (switchable): 230 V AC / 50 Hz or 115 V AC / 60 Hz
  • Fuses: 230 V: T 500 mA; 115 V: T 1 A
  • Power consumption: max 40 VA
  • Stand-by power consumption: 0.7 W

Dimensions (incl. feet)

  • 278 mm W x 100 mm H x 335mm D
  • 10.95 in W x 3.94 in H x 11.19 in D

Weight

  • 4.3 kg; 9.5 lbs (unit only)
  • 5.4 kg; 11.9 lbs (shipping)